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Note 11 - Subsequent Events (Details Textual) - USD ($)
2 Months Ended 3 Months Ended
Apr. 15, 2016
Mar. 02, 2016
Apr. 15, 2016
Mar. 31, 2016
Private Placement [Member] | Series B Preferred Stock [Member] | Subsequent Event [Member]        
Stock Issued During Period, Shares, New Issues 420,260   4,108,460  
Proceeds from Issuance of Private Placement     $ 4,635,575  
Private Placement [Member] | Series B Preferred Stock [Member]        
Stock Issued During Period, Shares, New Issues   913,200    
Private Placement [Member] | Subsequent Event [Member]        
Proceeds from Issuance of Private Placement $ 525,325      
Subsequent Event [Member] | Each Member of Board of Directors [Member] | Employee Stock Option [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period 10 years      
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 2 years      
Subsequent Event [Member] | Each Member of Board of Directors [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross 40,000      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Additional 5,000      
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price $ 1.25      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross       100,000
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price       $ 1.25